Heat and Thermodynamics Mcqs

Our collections of Multiple choice questions and answers focuses on study of Heat and Thermodynamics in Physics. These questions are chosen from a collection of most authoritative and best reference books on Physics. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, MDCAT, Teaching jobs Tests and Chemical industry job interviews. One should practice our Mcqs to assimilate knowledge on Heat and Thermodynamics in Physics comprehensively.

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Computer MCQS

Sciences MCQS

1.
According to Pascals law the pressure of gas in a vessel is

Different in different direction

Same in all direction

Same only along opposite directions

Same only along normal directions

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2.
Adiabatic process is also called

Heat exchange process

Heating process

Isentropic process

All of the above

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3.
At constant temperature the graph between V and 1/P is

Hyperbola

Parabola

A curve of any shape

A straight lime

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4.
Average translational kinetic energy per molecule of an ideal gas is given by

3NaT/2R

2NaT/3

3RT/2Na

3Na/2RT

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5.
Boltzman constant K in terms of universal gas constant R and Avagadros number Na is give as

K = RNa

K = R/Na

K = Na/Ra

K = nRNa

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6.
Boyles law helds for ideal gases in

Isochoric processes

Isobaric processes

Isothermal processes

Adiabatic processes

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8.
For a gas obeying Boyles law if the pressure is doubled the volume becomes

Double

One half

Four times

One fourth

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9.
For the successful operation of Heat engine which condition should be met.

Cyclic process

Operated at certain temperature difference

Both (a) and (b)

None of these

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10.
Gas molecules of different masses in the same container have the same average transnational kinetic energy which is directly proportional to their

Volume

Pressure

Absolute temperature

Time

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11.
If the pressure of a given gas is held constant its density is inversely proportional to its absolute temperature. We can refer it as another statement of

Boyles law

Charles law

Ideal gas law

Avagadros law

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12.
If the volume of a gas is held constant and we increase its temperature then

Its pressure is constant

Its pressure rises

Its pressure falls

Any of above

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13.
In a clinical thermometer the mercury in the capillary tube does not contract once removed from the patient because

Mercury takes a long time to contract

The amount of mercury use is very small

The capillary tube has a small constriction near the bulb

The capillary tube is very narrow

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14.
In which process all the heat supplied is converted into work done.

Isothermal

Isochoric

Isobaric

Isentropic

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